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authorSebastian Dröge <sebastian.droege@collabora.co.uk>2009-03-11 19:34:12 +0100
committerSebastian Dröge <sebastian.droege@collabora.co.uk>2009-03-21 10:19:47 +0100
commit654f0627e4874ec9f010ab7e2d523bd2a3f3fba0 (patch)
tree6f485075d4e42cec3849e032c3d677250d04e507
parent244c0a4707aa4ffcac9f93d5c8077fd3588feec7 (diff)
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mxfmux: Add support for muxing JPEG2000 code streams
-rw-r--r--gst/mxf/mxfjpeg2000.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/gst/mxf/mxfjpeg2000.c b/gst/mxf/mxfjpeg2000.c
index c9d7b2aa..9ff13f70 100644
--- a/gst/mxf/mxfjpeg2000.c
+++ b/gst/mxf/mxfjpeg2000.c
@@ -31,9 +31,11 @@
#endif
#include <gst/gst.h>
+#include <gst/video/video.h>
#include <string.h>
#include "mxfjpeg2000.h"
+#include "mxfwrite.h"
GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
#define GST_CAT_DEFAULT mxf_debug
@@ -202,8 +204,123 @@ static const MXFEssenceElementHandler mxf_jpeg2000_essence_element_handler = {
mxf_jpeg2000_create_caps
};
+static GstFlowReturn
+mxf_jpeg2000_write_func (GstBuffer * buffer, GstCaps * caps,
+ gpointer mapping_data, GstAdapter * adapter, GstBuffer ** outbuf,
+ gboolean flush)
+{
+ *outbuf = buffer;
+ return GST_FLOW_OK;
+}
+
+static const guint8 jpeg2000_essence_container_ul[] = {
+ 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
+ 0x0d, 0x01, 0x03, 0x01, 0x02, 0x0c, 0x01, 0x00
+};
+
+static const guint jpeg2000_picture_essence_coding[] = {
+ 0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x07,
+ 0x04, 0x01, 0x02, 0x02, 0x03, 0x01, 0x01, 0x00
+};
+
+static MXFMetadataFileDescriptor *
+mxf_jpeg2000_get_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
+ MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
+{
+ MXFMetadataRGBAPictureEssenceDescriptor *ret;
+ GstStructure *s;
+ guint32 fourcc;
+
+ s = gst_caps_get_structure (caps, 0);
+ if (strcmp (gst_structure_get_name (s), "image/x-jpc") != 0)
+ return NULL;
+
+ if (!gst_structure_get_fourcc (s, "fourcc", &fourcc))
+ return NULL;
+
+ ret = (MXFMetadataRGBAPictureEssenceDescriptor *)
+ gst_mini_object_new (MXF_TYPE_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR);
+
+ memcpy (&ret->parent.parent.essence_container, &jpeg2000_essence_container_ul,
+ 16);
+ memcpy (&ret->parent.picture_essence_coding, &jpeg2000_picture_essence_coding,
+ 16);
+
+ if (fourcc == GST_MAKE_FOURCC ('s', 'R', 'G', 'B')) {
+ ret->n_pixel_layout = 3;
+ ret->pixel_layout = g_new0 (guint8, 6);
+ ret->pixel_layout[0] = 'R';
+ ret->pixel_layout[1] = 8;
+ ret->pixel_layout[2] = 'G';
+ ret->pixel_layout[3] = 8;
+ ret->pixel_layout[4] = 'B';
+ ret->pixel_layout[5] = 8;
+ } else if (fourcc == GST_MAKE_FOURCC ('s', 'Y', 'U', 'V')) {
+ ret->n_pixel_layout = 3;
+ ret->pixel_layout = g_new0 (guint8, 6);
+ ret->pixel_layout[0] = 'Y';
+ ret->pixel_layout[1] = 8;
+ ret->pixel_layout[2] = 'U';
+ ret->pixel_layout[3] = 8;
+ ret->pixel_layout[4] = 'V';
+ ret->pixel_layout[5] = 8;
+ } else {
+ g_assert_not_reached ();
+ }
+
+ mxf_metadata_generic_picture_essence_descriptor_from_caps (&ret->parent,
+ caps);
+ *handler = mxf_jpeg2000_write_func;
+
+ return (MXFMetadataFileDescriptor *) ret;
+}
+
+static void
+mxf_jpeg2000_update_descriptor (MXFMetadataFileDescriptor * d, GstCaps * caps,
+ gpointer mapping_data, GstBuffer * buf)
+{
+ return;
+}
+
+static void
+mxf_jpeg2000_get_edit_rate (MXFMetadataFileDescriptor * a, GstCaps * caps,
+ gpointer mapping_data, GstBuffer * buf, MXFMetadataSourcePackage * package,
+ MXFMetadataTimelineTrack * track, MXFFraction * edit_rate)
+{
+ (*edit_rate).n = a->sample_rate.n;
+ (*edit_rate).d = a->sample_rate.d;
+}
+
+static guint32
+mxf_jpeg2000_get_track_number_template (MXFMetadataFileDescriptor * a,
+ GstCaps * caps, gpointer mapping_data)
+{
+ return (0x15 << 24) | (0x08 << 8);
+}
+
+static MXFEssenceElementWriter mxf_jpeg2000_essence_element_writer = {
+ mxf_jpeg2000_get_descriptor,
+ mxf_jpeg2000_update_descriptor,
+ mxf_jpeg2000_get_edit_rate,
+ mxf_jpeg2000_get_track_number_template,
+ NULL,
+ {{0,}}
+};
+
void
mxf_jpeg2000_init (void)
{
mxf_essence_element_handler_register (&mxf_jpeg2000_essence_element_handler);
+
+ mxf_jpeg2000_essence_element_writer.pad_template =
+ gst_pad_template_new ("jpeg2000_video_sink_%u", GST_PAD_SINK,
+ GST_PAD_REQUEST,
+ gst_caps_from_string ("image/x-jpc, fields = 1, width = "
+ GST_VIDEO_SIZE_RANGE ", height = " GST_VIDEO_SIZE_RANGE
+ ", framerate = " GST_VIDEO_FPS_RANGE
+ ", fourcc = (GstFourcc) { sRGB, sYUV }"));
+ memcpy (&mxf_jpeg2000_essence_element_writer.data_definition,
+ mxf_metadata_track_identifier_get (MXF_METADATA_TRACK_PICTURE_ESSENCE),
+ 16);
+ mxf_essence_element_writer_register (&mxf_jpeg2000_essence_element_writer);
}